Improvement in air-tight vessels



UNITED 1' are IMPROVEMENT IN AIR-TIGHT VESSELS.

Specification ibrnling part of Letters Patent No. 209,297, dated October22, 1878; application filed September 11, 1878. i i

To all whom it may concern Be it known that I, THOMAS H. SHAHAN, ofBoston, in the county of Suffolk and State of Massachusetts, haveinvented certain new and useful Improvements in Hermetically Sealin gJars, Cans, 850., of which the following is a full, clear, and exactdescription.

This invention relates to a novel mode of hermetically sealing jars,cans, bottles, 850., in which articles of food, 8tc., areto be placedfor preservation; and it consists substantially as will be hereinafterfully described.

In the accompanying plate of drawings my invention is illustrated,Figure 1 being a view, in elevation, of a jar, 850., with myhermetically-sealing attachment applied thereto; Figs. 2 and 3, planviews, showing it as closed and opened, respectively; Fig. 4, a verticalcross section on line a: 00, Fig. 2.

In the drawings, A represents, in side view,

ajar, 8zc., which can be made of glass or any suitable material; B, acover, connected by a pivot, a, to the top 0 of jar A, and arranged toswing horizontally over and on the top of the jar and to close itsmouth. This cover can also be made of glass or any suitable ma terial.

On upper edge, at the mouth of the jar, 84%., is a flange, 0, having aninternal groove, 0, which flange, with its groove 0, extends halfaround, or thereabout, the circumference of the mouth of the jar, &c.,the remaining part thereof havingatongue, d. In this groove 0, and overthe tongue 02 of the jar, 850., a corresponding tongue, f, and groove 9on the periphery of the coverB are adapted to fit and thereby make aclose joint.

When the cover B is placed in its position on the jar, 850., to closeits opening, as above described, a shoulder, h, of cover abuts against acorresponding shoulder, I, on the flange O of jar, 8:0.

1) is a hook attached to cover B. This hook, by one end, is hung andswings on the shoulder or raised circular portion m of cover B. The enda of hook is beyond the edge of cover, bending downward, and when thecover is in place on the jar, 850., to close its opening the end a ofhook can be swung around toward and over the enlarged part 0 of flangeG,

where the hook will wedge and bind, and

thus firmly draw and hold the cover to its seat, and tightly andhermetically seal the jar, 850.

To remove the cover, unfasten the hook by moving it back from itsinterlock with the enlarged part 0, when the cover will be free to beremoved by swinging or sliding it out of its tongue-andgroove seat,leaving the opening of the jar, &c., free and clear for the putting intoit of anything desired, when the cover can be closed again and secured,as before described.

Although the cover B is herein described as pivoted to the jar, 850., itneed not be so connected, as it can be entirely separate and independentthereof, which might be preferable in use, and it is not intended tolimit the invention to such connection.

In Fig. 5 is shown a plan view similar to Fig. 2, but with the cover Barranged to be independent of the jar, 8zc., so that it can be removedentirely.

The cover B, with its raised circular part m, is made all of one piece.I

There are many advantages in this mode of hermetically sealing jars,cans, &c.as, for instance, it is simple, cheap, easily ad justed, andwhen closed is readily secured, and also by the tongue-and-groove jointany pressure exerted on the cover will tend to increase the closeness ofits joint, thus insuring its hermetically sealin g.

If desired the joints can be packed with rubber, &c., or the contiguoussurfaces thereof prepared so as to insure a close fit.

Havingthus described my invention, what I claim, and desire to secure byLetters Pat.

cut, is

1. A vessel having its mouth constructed with a segmental groovedflange, C, in combination with a cover, B, having a segmental tongue, f,adapted to the groove in the flange O, and a device for holding thecoverin place, substantially as described. 7

2. The vessel A, having one side of its mouth constructed with asegmental flange, 0, having an internal groove,c, and the other side ofthe mouth with a segmental tongue, d, in combination with a cover, B,having the segmental tongue f and groove 9 adapted respectively to thegroove 0 and tongue (1, substantially as and for the purpose described.

3. The combination of the vessel A, having its mouth constructed withthe grooved flange O and tongue d, the cover B, having the tongue f andgroove 9 adapted to the groove and tongue of the mouth of the vessel,and a book,

1), embracing a circular shoulder on the cover, and having the end 02adapted to catch over the flange O, substantially as and. for thepurpose described.

Witnesses EDWIN W. BROWN, W. S. BELLOWS.

THOMAS H. SHAHAN.

